Slider for truck seat

• US 4,243,195 A
• Filed: 09/05/1978
• Issued: 01/06/1981
• Est. Priority Date: 09/05/1978
• Status: Expired due to Term

• Current Assignee: Monroe I. Rosenberg
• Original Assignee: Monroe I. Rosenberg
• Inventors: Rosenberg, Monroe I.
• Primary Examiner(s): Schultz, William H.
• Application Number:
  US05/939,402
• Time in Patent Office: 854 Days
• Field of Search: 248/419, 248/420, 248/429, 248/430, 248/424, 248/638
• US Class Current: 248/429
• CPC Class Codes: B60N 2/504 attached to the base and the backrest
• CPC Class Codes: B60N 2/507 Parallelogram-like structure
• CPC Class Codes: B60N 2/544 Compression or tension springs B60N2/542 takes precedence

Abstract

A vehicle seat suspension utilizing a pair of horizontally spaced frame members each having a pair of vertically spaced guide rails mounted thereon. Each of the guide rails on one frame member is horizontally spaced and parallel to a guide rail on the other frame member so that two vertically spaced planes are defined thereby. A first base member is movably mounted on one set of guide rails and a second base member is movably mounted on the other set of spaced guide rails. Locking means are provided for selectively locking the lowermost base member to the guide rails. Resilient means are provided for resiliently connecting the two base members together and resiliently holding the upper base member in a centered position relative to the lower base member. As a result, when the locking mechanism selectively locks the lower base member to the guide rails, the upper base member will be movable in both directions along the guide rails against the urging of the resilient means. A seat construction is mounted on the upper base member. A second locking mechanism is provided to selectively lock the upper base member to the frame members.

Claims

1. A vehicle seat suspension, comprising:

a pair of horizontally spaced frame members having a finite vertical height;

a pair of vertically spaced guide rails mounted on each of said frame members, each guide rail on one frame member being horizontally spaced from a guide rail on the other frame member so that two vertically spaced planes are defined thereby;

a first base member movably mounted on one set of horizontally spaced guide rails;

a second base member movably mounted on the other set of horizontally spaced guide rails;

locking means for selectively locking said second base member to at least one of said frame members;

resilient means resiliently connecting said first and second base members together and resiliently holding said first base member in a centered position relative to said second base member so that when said locking means selectively locks said second base member to at least one of said frame members, said first base member will be movable in both directions along said guide rails against the urging of said resilient means; and

a seat mounted on said first base member.

2. A vehicle seat suspension according to claim 1, including second locking means for selectively maintaining an unlocking of said first base member from at least one of said frame members and to selectively facilitate a locking of said first base member to said frame member.

3. A vehicle seat suspension according to claim 1, wherein said resilient means includes at least a pair of extension springs extending between said first and second base members, one extension spring being secured at one end to and adjacent a front edge of said first base member and at the other end to and adjacent a rear edge of said second base member, the other extension spring being secured at one end to and adjacent a rear edge of said first base member and at the other end to and adjacent a front edge of said second base member.

4. A vehicle seat suspension according to claim 3, including adjustment means for adjusting the tension in each of said springs.

5. A vehicle seat suspension according to claim 3, including an additional pair of extension springs connected in the same manner as the first mentioned pair.

6. In a vehicle seat suspension having a pair of laterally spaced frame members secured to flooring on said vehicle, a first guide means fixedly mounted on said frame members, a first base member movably supported on said first guide means and a seat mounted on said first base member, and attachment means for converting said vehicle seat suspension into a vibration isolation system to prevent the shocks and vibrations applied by the vehicle to the vehicle seat from being transmitted to said vehicle seat, said attachment means comprising:

a second guide means fixedly mounted relative to said vehicle flooring, said second guide means being parallel to and in vertically spaced relation to said first guide means;

a second base member movably mounted on said second guide means in vertically spaced relation to said first base member;

locking means for selectively locking said second base member to said second guide means; and

resilient means resiliently connecting said first and second base members together and resiliently holding said first base member in a centered position relative to said second base member so that when said locking means selectively locks said second base member to said second guide means, said first base member will be movable in both directions along said first guide means against the urging of said resilient means.

7. A vehicle seat suspension according to claim 6, wherein said second guide means is fixedly mounted on each of said frame members below said first guide means;

and

wherein said second base member is mounted on said second guide means and is oriented below said first base member.

8. A vehicle seat suspension, comprising:

frame means having a finite vertical height;

a pair of vertically spaced guide rail means mounted on said frame means, each of said guide rail means being oriented in two vertically spaced planes;

a first base member movably mounted on one of said guide rail means;

a second base member movably mounted on the other of said guide rail means;

locking means for selectively locking said second base member to said frame means;

resilient means resiliently connecting said first and second base members together and resiliently holding said first base member in a centered position relative to said second base member so that when said locking means selectively locks said second base member to said frame means, said first base member will be movable in both directions along said one of said guide rail means against the urging of said resilient means; and

a seat mounted on said first base member.